
“To be ignorant of what occurred before you were born is to remain always a child. For what is the worth of human life, unless it is woven into the life of our ancestors by the records of history?”
Nescire autem quid ante quam natus sis acciderit, id est semper esse puerum. Quid enim est aetas hominis, nisi ea memoria rerum veterum cum superiorum aetate contexitur? ([http://www.thelatinlibrary.com/cicero/orator.shtml#120 120])
Variant translation: To be ignorant of the past is to be forever a child.
Chapter XXXIV, section 120
Orator Ad M. Brutum (46 BC)
Variant: Not to know what happened before you were born is to be a child forever. For what is the time of a man, except it be interwoven with that memory of ancient things of a superior age?